window.onload = async function () {
  const res = await axios({
    url: '/dashboard',
    method: 'get',
    // 额外的设置请求头
    // 把登录之后的token 带到服务器
    // 接口/后端去校验 token是否正确
    headers: {
      // msg这个值 只是用来的测试的 没有任何意义
      // msg: 'good good study day day up',
      // 缓存中获取 token
      // Authorization: localStorage.getItem('token')
    }
  })

  const {
    data: { overview }
  } = res
  setYearSalary(res.data.year)
  setClassSalary(res.data.salaryData)
  setgroupSalary(res.data.groupData)
  setSon(res.data.salaryData)
  initMapChart(res.data.provinceData)

  // document.querySelector('span[name=salary]').innerHTML = overview.salary
  // document.querySelector('span[name=student_count]').innerHTML = overview.student_count
  // document.querySelector('span[name=age]').innerHTML = overview.age
  // document.querySelector('span[name=group_count]').innerHTML = overview.group_count
}
// 折线图
const setYearSalary = data => {
  const chartDom = document.querySelector('#line')
  //初始化图标
  const myChart = echarts.init(chartDom)
  // 设置配置项
  let option = {
    title: {
      text: '2021全学科薪资走势',
      top: '2%',
      left: '2%'
    },
    xAxis: {
      type: 'category',
      data: data.map(item => item.month),
      axisLine: {
        lineStyle: {
          color: '#ccc',
          type: 'dashed'
        }
      },
      axisLabel: {
        color: '#999'
      }
    },
    yAxis: {
      type: 'value',
      splitLine: {
        lineStyle: {
          type: 'dashed'
        }
      }
    },
    series: [
      {
        data: data.map(item => item.salary),
        type: 'line',
        smooth: true,
        //线条加粗
        lineStyle: {
          width: 6
        },
        //线条小圆点加粗
        symbolSize: 10,
        areaStyle: {
          color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
            {
              offset: 0,
              color: '#499FEE'
            },
            {
              offset: 0.8,
              color: 'rgba(255,255,255,0.2)'
            },
            {
              offset: 1,
              color: 'rgba(255,255,255,0)'
            }
          ])
        }
      }
    ],
    tooltip: {
      trigger: 'axis'
    },
    color: {
      type: 'linear',
      x: 0,
      y: 0,
      x2: 0,
      y2: 1,
      colorStops: [
        {
          offset: 0,
          color: '#499FEE' // 0% 处的颜色
        },
        {
          offset: 1,
          color: '#5D75F0' // 100% 处的颜色
        }
      ],
      global: false // 缺省为 false
    }
  }
  // 生成图表
  option && myChart.setOption(option)
}
// 饼图
const setClassSalary = data => {
  var chartDom = document.getElementById('salary')
  var myChart = echarts.init(chartDom)
  var option

  option = {
    title: {
      text: '班级薪资分布',
      top: 15,
      left: 10,
      textStyle: {
        fontSize: 16
      }
    },
    tooltip: {
      trigger: 'item'
    },
    legend: {
      bottom: '6%',
      left: 'center'
    },
    // 设置颜色
    color: ['#FDA224', '#5097FF', '#3ABCFA', '#34D39A'],
    series: [
      {
        name: '班级薪资分布',
        // 设置图标样式
        type: 'pie',
        // 半径
        radius: ['50%', '65%'],
        // 中心点坐标
        center: ['50%', '45%'],
        // 区域样式
        avoidLabelOverlap: false,
        itemStyle: {
          borderRadius: 10,
          borderColor: '#fff',
          borderWidth: 2
        },
        //文本
        label: {
          show: false,
          position: 'center'
        },
        // 高亮状态的扇区和标签样式
        // emphasis: {
        //   label: {
        //     show: true,
        //     fontSize: '40',
        //     fontWeight: 'bold'
        //   }
        // },
        //刻度线
        labelLine: {
          show: false
        },
        data: data.map(item => {
          return { value: item.g_count + item.b_count, name: item.label }
        })
      }
    ]
  }

  option && myChart.setOption(option)
}
// 柱状图
const setgroupSalary = data => {
  var chartDom = document.getElementById('lines')
  var myChart = echarts.init(chartDom)
  var option

  option = {
    grid: {
      left: 70,
      top: 30,
      right: 30,
      bottom: 50
    },
    xAxis: {
      type: 'category',
      data: data['1'].map(item => {
        return item.name
      }),
      axisLine: {
        lineStyle: {
          color: '#ccc',
          type: 'dashed'
        }
      },
      axisLabel: {
        color: '#999'
      }
    },
    yAxis: {
      type: 'value',
      splitLine: {
        lineStyle: {
          type: 'dashed'
        }
      }
    },
    tooltip: {
      trigger: 'item'
    },
    color: [
      {
        type: 'linear',
        x: 0,
        y: 0,
        x2: 0,
        y2: 1,
        colorStops: [
          {
            offset: 0,
            color: '#34D39A' // 0% 处的颜色
          },
          {
            offset: 1,
            color: 'rgba(52,211,154,0.2)' // 100% 处的颜色
          }
        ]
      },
      {
        type: 'linear',
        x: 0,
        y: 0,
        x2: 0,
        y2: 1,
        colorStops: [
          {
            offset: 0,
            color: '#499FEE' // 0% 处的颜色
          },
          {
            offset: 1,
            color: 'rgba(73,159,238,0.2)' // 100% 处的颜色
          }
        ]
      }
    ],
    series: [
      {
        data: data['1'].map(item => {
          return item.hope_salary
        }),
        type: 'bar',
        name: '期望薪资'
      },
      {
        data: data['1'].map(item => {
          return item.salary
        }),
        type: 'bar',
        name: '就业薪资'
      }
    ]
  }

  option && myChart.setOption(option)
  const btns = document.querySelector('#btns')
  btns.addEventListener('click', e => {
    //事件委托
    if (e.target.tagName === 'BUTTON') {
      //排他思想
      btns.querySelector('.btn-blue')?.classList.remove('btn-blue')
      e.target.classList.add('btn-blue')
      //确定获取的是哪一组的数据
      const group = e.target.innerText
      // 切换数据
      option.xAxis.data = data[group].map(item => item.name)
      option.series[0].data = data[group].map(item => item.hope_salary)
      option.series[1].data = data[group].map(item => item.salary)
      myChart.setOption(option)
    }
  })
}
const setSon = data => {
  var chartDom = document.getElementById('gender')
  var myChart = echarts.init(chartDom)
  var option
  var datas = [
    data.map(item => {
      return { value: item.g_count, name: item.label }
    }),
    data.map(item => {
      return { value: item.b_count, name: item.label }
    })
  ]
  option = {
    title: [
      {
        text: '男女薪资分布',
        left: '2%',
        top: '2%',
        textStyle: {
          // color: '#000',
          // fontWeight: 'normal',
          fontSize: 18
        }
      },
      {
        text: '男生',
        left: '50%',
        top: '45%',
        textAlign: 'center',
        textStyle: {
          fontSize: 16
        }
      },
      {
        text: '女生',
        left: '50%',
        top: '88%',
        textAlign: 'center',
        textStyle: {
          fontSize: 16
        }
      }
    ],
    color: ['#FDA224', '#5097FF', '#3ABCFA', '#34D39A'],
    series: datas.map(function (data, idx) {
      var top = idx * 45
      return {
        type: 'pie',
        radius: [50, 65],
        top: top + '%',
        height: '50%',
        left: 'center',
        width: 400,
        itemStyle: {
          borderColor: '#fff',
          borderWidth: 0
        },
        label: {
          show: true,
          rich: {
            time: {
              fontSize: 10,
              color: '#999'
            }
          }
        },
        labelLine: {
          show: true
        },

        data: data
      }
    })
  }

  option && myChart.setOption(option)
}
// replace(/省/g, '')

const initMapChart = provinceData => {
  const myEchart = echarts.init(document.querySelector('#map'))
  const dataList = [
    { name: '南海诸岛', value: 0 },
    { name: '北京', value: 0 },
    { name: '天津', value: 0 },
    { name: '上海', value: 0 },
    { name: '重庆', value: 0 },
    { name: '河北', value: 0 },
    { name: '河南', value: 0 },
    { name: '云南', value: 0 },
    { name: '辽宁', value: 0 },
    { name: '黑龙江', value: 0 },
    { name: '湖南', value: 0 },
    { name: '安徽', value: 0 },
    { name: '山东', value: 0 },
    { name: '新疆', value: 0 },
    { name: '江苏', value: 0 },
    { name: '浙江', value: 0 },
    { name: '江西', value: 0 },
    { name: '湖北', value: 0 },
    { name: '广西', value: 0 },
    { name: '甘肃', value: 0 },
    { name: '山西', value: 0 },
    { name: '内蒙古', value: 0 },
    { name: '陕西', value: 0 },
    { name: '吉林', value: 0 },
    { name: '福建', value: 0 },
    { name: '贵州', value: 0 },
    { name: '广东', value: 0 },
    { name: '青海', value: 0 },
    { name: '西藏', value: 0 },
    { name: '四川', value: 0 },
    { name: '宁夏', value: 0 },
    { name: '海南', value: 0 },
    { name: '台湾', value: 0 },
    { name: '香港', value: 0 },
    { name: '澳门', value: 0 }
  ]
  provinceData.forEach(item => {
    const arr = JSON.parse(JSON.stringify(item).replace(/维吾尔|壮族|回族|省|自治区/g, ''))
    dataList.forEach(item => {
      if (arr.name === item.name) {
        item.value = arr.value
      }
      // arr.name === item.name&&item.value = arr.value
    })
  })
  let option = {
    title: {
      text: '籍贯分布',
      top: 10,
      left: 10,
      textStyle: {
        fontSize: 16
      }
    },
    tooltip: {
      trigger: 'item',
      formatter: '{b}: {c} 位学员',
      borderColor: 'transparent',
      backgroundColor: 'rgba(0,0,0,0.5)',
      textStyle: {
        color: '#fff'
      }
    },
    visualMap: {
      min: 0,
      max: 6,
      left: 'left',
      bottom: '20',
      text: ['6', '0'],
      inRange: {
        color: ['#ffffff', '#0075F0']
      },
      show: true,
      left: 40
    },
    geo: {
      map: 'china',
      roam: false,
      zoom: 1.0,
      label: {
        normal: {
          show: true,
          fontSize: '10',
          color: 'rgba(0,0,0,0.7)'
        }
      },
      itemStyle: {
        normal: {
          borderColor: 'rgba(0, 0, 0, 0.2)',
          color: '#e0ffff'
        },
        emphasis: {
          areaColor: '#34D39A',
          shadowOffsetX: 0,
          shadowOffsetY: 0,
          shadowBlur: 20,
          borderWidth: 0,
          shadowColor: 'rgba(0, 0, 0, 0.5)'
        }
      }
    },
    series: [
      {
        name: '籍贯分布',
        type: 'map',
        geoIndex: 0,
        data: dataList
      }
    ]
  }
  myEchart.setOption(option)
}
